<template>
  <div class="login_contaniner">
    <div class="login_logo">
      <div>
        <img src="../assets/images/login_logo.png" style="width: 130px" />
      </div>
      <div
        style="
          color: #3b976a;
          background-color: #3b976a;
          margin: 6px 8px;
          width: 2px;
        "
      ></div>
      <div style="line-height: 42px">
        <span style="color: #3b976a; font-size: 25px">宠泰泰综合管理后台</span>
      </div>
    </div>
    <div class="login_box">
      <!-- 头像区域 -->
      <!-- <div class="avatar_box">
        <img src="../assets/logo.png" />
      </div> -->
      <div class="green_line"></div>
      <div class="orange_line"></div>
      <div style="padding: 30px 0px 0px 20px">
        <span style="font-size: 24px">登录</span>
      </div>
      <div
        style="
          color: rgb(220 223 230);
          background-color: rgb(220 223 230);
          margin: 8px 20px;
          height: 1px;
        "
      ></div>
      <!-- 登录表单区域 -->
      <!-- label-width="0px" -->
      <el-form
        ref="loginFormRef"
        :model="loginForm"
        :rules="loginFormRules"
        class="login_form"
      >
        <!-- 用户名 -->
        <el-form-item prop="username" label="账号">
          <!-- prefix-icon="iconfont icon-user" -->
          <el-input
            v-model="loginForm.username"
            placeholder="请输入账号名"
          ></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password" label="密码">
          <!-- prefix-icon="iconfont icon-3702mima" -->
          <el-input
            v-model="loginForm.password"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button @click="login" class="login_btn">登录</el-button>
          <!-- <el-button type="info" @click="resetLoginForm">重置</el-button> -->
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 这是登录表单的数据绑定对象
      loginForm: {
        username: '',
        password: ''
      },
      // 这是表单的验证规则对象
      loginFormRules: {
        // 验证用户名是否合法
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          {
            min: 3,
            max: 20,
            message: '长度在 3 到 20 个字符',
            trigger: 'blur'
          }
        ],
        // 验证密码是否合法
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '长度在 6 到 15 个字符',
            trigger: 'blur'
          }
        ]
      }
    }
  },
  methods: {
    // 点击重置按钮，重置登录表单
    resetLoginForm() {
      // console.log(this)
      this.$refs.loginFormRef.resetFields()
    },
    login() {
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) return false
        const { data: res } = await this.$http.post(
          '/admin/user/login',
          this.loginForm
        )
        if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
        this.$message.success('登录成功！')
        // 1、将登录成功之后的 token，保存到客户端的 sessionStorage 中
        // 1.1 项目中除了登录之外的其他API接口，必须在登录之后才能访问
        // 1.2 token只应在当前网站打开期间生效，所以将 token 保存在 sessionStorage 中
        window.sessionStorage.setItem('token', res.data.token)
        // 2、通过编程式导航跳转到后台主页，路由地址是 /home
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_logo {
  position: absolute;
  display: flex;
  top: 2%;
  left: 2%;
}
.login_contaniner {
  height: 100%;
  background-image: url(../assets/images/loginBackground.png);
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: cover;
}
.login_box {
  // width: 450px;
  width: 25%;
  height: 400px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 77%;
  top: 50%;
  transform: translate(-50%, -50%);

  .avatar_box {
    width: 88px;
    height: 88px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #eee;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }
}
.login_form {
  position: absolute;
  bottom: 30px;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
  // .el-form-item {
  //   margin-bottom: 0;
  // }
}
.btns {
  display: flex;
  justify-content: flex-end;
  margin-top: 30px;
}
/deep/.el-form-item__content {
  width: 100%;
  .login_btn {
    width: 100%;
    color: #ffffff;
    background-color: #ff901a;
    border: none;
  }
}
.green_line {
  background-color: green;
  height: 6px;
  border-radius: 5px 0px 0px 0px;
  width: 50%;
  float: left;
}
.orange_line {
  background-color: orange;
  height: 6px;
  border-radius: 0px 5px 0px 0px;
  width: 50%;
  float: left;
}
</style>
